利用NOAA／AVHRR影像资料估算积雪量的方法探讨

结合实际考察的各种资料数据，在我们以往研究的理论技术、估算用数学模型和应用程序的基础上，提出和论述了估算航卫遥感影像信息中积雪量的整套计算机分析流程和处理新方法，并在技术措施和适用性上，进一步进行了验证、增补和修改。在时间上对不同年份而在同一季节时期局部地区的遥感积雪资料进行相对量的结果分析和比较，给出了一些实际数据图表。

Exploring the Estimation of Snowpack Volume With NOAA/AVHRR Satellite Data

Snowpack volume in the Urumqi District and the mid-section of the Tianshan Mountains etc. is estimated from the NOAA/AVHRR data. Rectification of orientation, regional automatic windowing, zonal altitute superposition and measurement of snow depth and volume are suggested in this paper, along with their verification, supplementation and modification. The followings are mainly discussed: 1) Every step of comprehensive analysis on snowpack volume; 2) Conversion formulas among snow area, depth and volume; 3) Error treatment; 4) Interannual difference in snowpack volume in the same season. For error treatment, some correction coefficients are presented.